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???
03/19/05 18:05
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#90019 - "fancy" code
Responding to: ???'s previous message
Michael Karas said:
Your just now proving to yourself that your "fancy" code is way way to complicated for the simple functions being implemented. You may have the idea that it is 'elegant' but I'll tell you right now that on a '51 such code is hugely inefficient. Especially the use of all the structures and object pointers.


I just read the two articles you pointed at in your reply. I fully understand what you're trying to say.
I'm not going to say I don't know any 8051 assembly code, but I'm honest enough to say that I don't have enough in-depth assembly knowledge to do what I want to do right now in C, but then in assembler.

Whether one likes it or not, but in my case it's a fact.

But let me ask you a question: you say my 'fancy' code is way too complicated because of the usage of structures, pointers, etc...

Can you then tell me what the alternative is to avoid multiple modules to control the same device?

For example: in my project, I will have in total 12 PCF8574 IO expanders, 8 PCF8591 ADDA converters and 4 TDA8444 DAC's. What do I have to do to avoid implementing 12 times the same driver for the IO expander, 8 times the same driver for the 8591 and 4 times the same driver for the 8444?
Using structs and pointers is currently my way of avoiding this 'monkey job'.

Do you have a better solution for this? I would be very glad (and eager) to learn from this solution, if you would have, so that I indeed can return to 'less fancy' code.

I'm very curious and I'm looking forward to see some proposals...

Best rgds,

--Geert

List of 77 messages in thread
TopicAuthorDate
Problems with PCF8574 input            01/01/70 00:00      
   best guess            01/01/70 00:00      
      To Erik            01/01/70 00:00      
         So....            01/01/70 00:00      
            To Jez Smith            01/01/70 00:00      
         show the code            01/01/70 00:00      
            To Oleg            01/01/70 00:00      
               How to post code            01/01/70 00:00      
                  To Andy            01/01/70 00:00      
   hmmmmmm            01/01/70 00:00      
      To Jez            01/01/70 00:00      
   RTFDS - using 8574 IO as inputs            01/01/70 00:00      
      To J. Guy            01/01/70 00:00      
         When is pin written ?            01/01/70 00:00      
            My datasheet tells something different..            01/01/70 00:00      
               To Kai            01/01/70 00:00      
                  cutting through the fog            01/01/70 00:00      
            To J. Guy            01/01/70 00:00      
   Where is the difference between...            01/01/70 00:00      
      To Kai            01/01/70 00:00      
         Re:Problems with PCF8574 input            01/01/70 00:00      
         Test it without having any communication            01/01/70 00:00      
            To Kai            01/01/70 00:00      
   Maybe good guess!            01/01/70 00:00      
      To Medhi            01/01/70 00:00      
      Switch terminology            01/01/70 00:00      
         Thanks!            01/01/70 00:00      
            Coonfoosed yeeet            01/01/70 00:00      
               Contact arrangement - nothing else            01/01/70 00:00      
   PCF8574            01/01/70 00:00      
      To Ben            01/01/70 00:00      
   I have used the bugger often            01/01/70 00:00      
      To Erik            01/01/70 00:00      
         helloooooooooo !!            01/01/70 00:00      
            To Erik            01/01/70 00:00      
         Wager...            01/01/70 00:00      
            To Grant            01/01/70 00:00      
      The code...            01/01/70 00:00      
         Thats told 'em :-)            01/01/70 00:00      
            Frightend... ;-)            01/01/70 00:00      
         Formatting            01/01/70 00:00      
            Format flavours.            01/01/70 00:00      
   Insanity            01/01/70 00:00      
      Malaysian Grand Prix...            01/01/70 00:00      
   Some update!!!            01/01/70 00:00      
      Let me comment....            01/01/70 00:00      
         "fancy" code            01/01/70 00:00      
            I'll Suggest...            01/01/70 00:00      
               Pointers and structures            01/01/70 00:00      
         C assumes int            01/01/70 00:00      
            Followed the advice of Michael Karas...            01/01/70 00:00      
               Why not assembly using?            01/01/70 00:00      
                  Assembler code            01/01/70 00:00      
            Well...            01/01/70 00:00      
               int            01/01/70 00:00      
                  Check Maxint ?            01/01/70 00:00      
                     Maxint            01/01/70 00:00      
                  Murdered quote            01/01/70 00:00      
   I2C code            01/01/70 00:00      
      Keil webpage            01/01/70 00:00      
         i2c simulator            01/01/70 00:00      
            Me to blame?            01/01/70 00:00      
               not blaming you!            01/01/70 00:00      
                  Michael B. made a very usefull tool!            01/01/70 00:00      
         hello            01/01/70 00:00      
            Not aware?            01/01/70 00:00      
               thank u            01/01/70 00:00      
                  Name confusion...            01/01/70 00:00      
               hi            01/01/70 00:00      
   Damned, damned, damned...            01/01/70 00:00      
      Ha, ha, ha, ha, ha ....            01/01/70 00:00      
      Calico            01/01/70 00:00      
         Pls. do so!            01/01/70 00:00      
      Keyboard Calico            01/01/70 00:00      
         Christmas            01/01/70 00:00      
            Maybe it was ....            01/01/70 00:00      
            Christmas Presents            01/01/70 00:00      

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